Computer Science ›› 2015, Vol. 42 ›› Issue (9): 285-288.doi: 10.11896/j.issn.1002-137X.2015.09.056

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Multi-projector Displays System Research Based on GPU Real-time Video Processing

LI Xiao-guang, LIU Hong-zhe and YUAN Jia-zheng   

  • Online:2018-11-14 Published:2018-11-14

Abstract: This paper introduced GPU high-speed parallel computing,which plays an important role in digital image and video processing.For multi-channel surround screen projection system,we used a combination of CPU and GPU heterogeneous computing structure,and proposed a real-time video processing solution.By using link model of DirectShow, the program ensures the flexibility of video processing.Geometric correction and edge blending algorithm are designed for parallel computing to enhance the efficiency of video processing.This framework can be used for single-channel,high-quality 4k format video display,effectively reduces building costs,and improves economic practicality of the system.

Key words: Parallel computing,Multi-channel projection,Real-time video processing,DirectShow,Geometric correction,Edge blending

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